Best way to connect my set up?

I have a laptop, DDJ Flx4, Scarlett 2i2, psw110 subwoofer from Polk audio, and some M-Audio AV40’s. Had them and I’m not trying to spend a ton of money for a solid set up at home.

Do I go from laptop to Scarlett, then…. what?

I’m new to this so any help is appreciated!